[Zope3-checkins] CVS: Zope3/src/datetime/tests - test_datetime.py:1.13

[Tim Peters]

Update of /cvs-repository/Zope3/src/datetime/tests
In directory cvs.zope.org:/tmp/cvs-serv4901/src/datetime/tests

Modified Files:
	test_datetime.py 
Log Message:
astimezone() internals:  if utcoffset() returns a duration, complain if
dst() returns None (instead of treating that as 0).


=== Zope3/src/datetime/tests/test_datetime.py 1.12 => 1.13 ===
--- Zope3/src/datetime/tests/test_datetime.py:1.12	Wed Jan  1 15:56:21 2003
+++ Zope3/src/datetime/tests/test_datetime.py	Thu Jan  2 14:27:14 2003
@@ -2601,6 +2601,8 @@
     dston = datetimetz(2002, 4, 7, 2)
     dstoff = datetimetz(2002, 10, 27, 2)
 
+    theclass = datetimetz
+
     # Check a time that's inside DST.
     def checkinside(self, dt, tz, utc, dston, dstoff):
         self.assertEqual(dt.dst(), HOUR)
@@ -2738,6 +2740,21 @@
         expected = self.dston.replace(hour=1)
         got = sixutc.astimezone(Eastern).astimezone(None)
         self.assertEqual(expected, got)
+
+    def test_bogus_dst(self):
+        class ok(tzinfo):
+            def utcoffset(self, dt): return HOUR
+            def dst(self, dt): return HOUR
+
+        now = self.theclass.now().replace(tzinfo=utc_real)
+        # Doesn't blow up.
+        now.astimezone(ok())
+
+        # Does blow up.
+        class notok(ok):
+            def dst(self, dt): return None
+        self.assertRaises(ValueError, now.astimezone, notok())
+
 
 def test_suite():
     allsuites = [unittest.makeSuite(klass, 'test')